Sash lock and lift.



J. A. GIESB.

SASH LOCK AND LIFT. ArPLmATloN FILED 111111,23. 1911.

Patented June 18, 1912.

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JAMES A. GIESE, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO ATHE ADAMS & WSTLAKE`COMPANY, A CORPORATION OF ILLINOIS.

SASI-I LOCK AND LIFT.

To all whom t 'may concern.'

Be it known that I, JAMES A. Giese, a citizen of the United States, andresident of Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Sash Locks and Lifts, ofwhich the following is a specification, and which are illustrated in theaccompanying drawings, forming a part thereof.

The invention relates to locks especially adapted for use in connectionwith car windows, and being provided with means operating upon theapplication of pressure to either raise or lower the sash, for withdrawing the locking bolt; its objects being to se cure simplicity ofconstruction and easy control of the bolt, a further object being toprovide a device of this kind which may be applied without modificationto either side of the sash.

rlhe present invention is an improvement on the form of constructionwhich is the subject of my copending application Serial No. 593,556.

The invention consists in a structure such as is hereinafter described,and as illustrated in the accompanying drawings, in which- Figure 1 is adetail elevation of a window casing and sash, some parts being brokenaway, to which the improved lock is applied; Fig. 2 is a detaillongitudinal vert-ical section of the lock; Fig. 3 is a longitudinalsection on the line 3 3 of Fig. 2; Fig. 4 is a transverse section on theline 4 4 of Fig. 2; and Fig. 5 is a perspective of various parts of thelock separated from each other.

A window casing is shown at 10, and a window sash slidably mountedwithin the casing is sho-wn at 11. The lock is tted within the bottomrail of the sash, and as shown in Fig. 1 two locks may be applied, onecoperating with each stile of the frame.

The lock comprises a suitable casing adapted to be set within a mortisein the sash rail so that its outer face is flush with the face thereof,a bolt reciprocating through a socket entering from the edge ofthe sash,a pair of grip members housed within the casing and adapted to receiveupward and downward pressure, respectively, each grip member beingoperatively connected with the bolt so that upon the application ofpressure for raising or lowering the sash the bolt is withdrawn.

Specification of Letters Patent.

Application filed March 23, 1911.

Patented June 1s, i912.

Serial N o. 616,504.

The case of the lock comprises a base plate 12, a face plate 13, and endwalls 14, 15, the back and face plates being united by means of screwswhich enter the end walls, such walls being preferably formed integralwith one of such plates. The face plate 13 is apertured for theinsertion of the lingers of the user in securing a grip for applyingpressure to raise or lower the sash and to operate the lock. A pair ofgrip members 16, 17, are housed within the casing, one being locatedadjacent each side of the aperture of the face plate. Each of such gripmembers has laterally projecting arms 18, 19, and 20, 21, one of thesearms of each pair being at each end of the grip member with which it isassociated. The width of these arms is approximately one-half of thedepth of the chamber of the casing. These lateral arms are so disposedand related that one pair rests and slides upon the other pair. Thelateral arms 19 and 21 of the grip members are in sliding engagementwith the inner face of the rearward wall 15 of the casing, and the othersetI of arms 18 and 20 is in sliding engagement with the forward orouter face of the wall 14.

The base plate 12 is extended forwardly, as shown at 22, such extensionhaving adj acent its end an upstanding apertured flange 23, which ispreferably provided with an apertured boss 24 surrounding the flangeaperture and serving as a bearing for the tail block 25 of the boltI 2G.The inner end of the block 25 is longitudinally slotted, as shown at 27,and is provided with laterally projecting arms 28, 29. The arm 28 isformed of a lateral lug 30 projecting toward the base plate 12; the arm29 having a lateral lug 31 extending toward the face plate 13.

Two bell cranks 32, 33, are pivoted upon a post 34 rising from the baseplate 12 and extending through `the slot 27 of the tail piece of thebolt. These bell cranks are located upon opposite sides of the tailpiece and each engages by one of its arms 35, 36, one of the lateralarms 28, 29, the arm 35 of the bell crank 32 making contact with the lug31, and the arm 3G of the bell crank 33 making contact with the lug 30.The arm 37 of the bell crank 32 fits wit-hin a recess 38 in the forwardarm 18 of the grip mem ber 16. The arm 39 of the bell crank 33 fitswithin a recess 40 in the arm 20 of the grip member 17. Lateral pressureapplied to either of the grip members 16, 17, Will, therefore, cause theoscillation of one of the bell cranks and the Withdrawal thereby of thebolt. A spring 41, shovvn as mounted upon a post 42 rising from theextension 22 of the plate 12, bears outwardly against a. shoulder on thetail piece of the bolt and normally holds the bolt in its advancedposition. Upon release of pressure upon the grip member Which has beenused inavithdrawing the bolt, the spring ret-urns all of the parts totheir normal position. Pressure may be appliedat any point on the faceof either of the grip members as they slide freely in their Ways, thelong bearings provided preventing any tendency to bind. It beingentirely immaterial which of the grip members is uppermost, the lock maybe applied at either side of the sash.

I claim as my invention- 1'. In a sash fastener, in combination, areciprocating bolt, a pair of oppositely disf posed pressure barsmovable laterally and in paths transverse to the path of the bolt, eachbar having a pair of lateral arms, the arms of each bar being in slidingengagement with the arms of the other bar', Vand a pair of angle leverseach having one arm in engagement with the bolt and its other arm inengagement with a lateral arm of one of the pressure bars.

2. In a sash fastener, in combination, a reciprocating bolt, a pair ofoppositely disosed pressure bars movable laterally and 1n pathstransverse to the path of the bolt, each bar having a pair of lateralarms, the arms of each bar being in sliding engagement with the arms ofthe other bar, and

means for operatively connecting one of the arms of each bar With thebolt.

Y 3. In a sash fastener, in combination, a casing having an aperturedface plate and having longitudinal and transverse slide- Ways, a boltreciprocating in the longitudinal slideway, Va pair of reciprocatingpressure bars Within the casing, such bars being respectively adjacenteach side of the platel aperture, lateral arms projecting from the endsof each bar and runningv in the transverse slideways, a pair of anglelevers each having one arm in engagement With the bolt and one arm inengagement with one of the lateral arms of one of the pressure bars, anda spring for advancing the bolt.

4. In a sash fastener, in combination, a casing having an apertured faceplate and having longitudinal and transverse slide- Ways, a boltreciprocating in the longitudinal slideway and having its tail piecelongitudinally slotted, a pair of reciprocating pressure bars Within thecasing, such bars being respectively adjacent each side of the plateaperture, lateral arms projecting from the ends of eachl bar and runningin the transverse slideways, aI pin fixed in the casi ing and settingthrough the slot in the bolt tail piece, a pair of angle levers pivotedon the pin and each having one arm in engagement with a shoulder on thebolt tail piece, and one arm in engagement With one of the lateral armsof the pressure bars, and a` spring for advancing the bolt.

JAMES A. GIESE.

IVitnesses:

Louis K. GILLsoN, E. M. KLATGHER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

